Last month I ran a half marathon on day 3 with my Keeper Moon Cup in and it worked great! No leaks, no worrying about changing a tampon in a porta-potty moments before the start of the race. I put my cup in 30 minutes before in the comfort of my hotel bath room. When I checked after the race, it was about half full. Success!
This month, on day 1 (super heavy) I tried my Lunette on a 13 mile training run. I made sure my cup was positioned right, and off I went. Was running great; then at mile 9, I felt my thighs chafing. I looked down and there was dried blood on my thighs! Huh? I can tell when the cup is overflowing and I hadn't felt anything.
When I got home, the cup was still positioned right, and was only half full when I removed it. Aha!
"Residual Slobber" mixed with sweat.....looks like a lot of blood! It also gives the illusion of "cup malfunction" or leaking! I usually don't worry about the "slobber" because I always wear my cloth panty liners as back up.....but not when running!
The next day (still super heavy), I tried again with a modification.....after the cup was positioned perfectly, I wiped around the outside of the cup with my finger to make sure it was clean. Ran 12 miles and had no problems!
If you are a runner, don't be afraid to use your cup....just position it right and check for "slobber"!